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Finding the Fourth Proportional to 539,031.80, 808,547.70 and 165,006.20

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Solution

The fourth proportional to 539,031.80, 808,547.70 and 165,006.20 is: 247,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,031.80 : 808,547.70 = 165,006.20 : x
  2. Step 2: Convert to fraction form
    539,031.80/808,547.70 = 165,006.20/x
  3. Step 3: Cross multiply
    539,031.80x = 808,547.70 × 165,006.20
  4. Step 4: Simplify right side
    539,031.80x = 133,415,383,495.74
  5. Step 5: Solve for x
    x = 133,415,383,495.74/539,031.80
  6. Step 6: Final answer
    x = 247,509.30

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.