Home / 345,430.28-517,934.35-165,570.74

Finding the Fourth Proportional to 345,430.28, 517,934.35 and 165,570.74

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Solution

The fourth proportional to 345,430.28, 517,934.35 and 165,570.74 is: 248,254.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,430.28 : 517,934.35 = 165,570.74 : x
  2. Step 2: Convert to fraction form
    345,430.28/517,934.35 = 165,570.74/x
  3. Step 3: Cross multiply
    345,430.28x = 517,934.35 × 165,570.74
  4. Step 4: Simplify right side
    345,430.28x = 85,754,771,011.25
  5. Step 5: Solve for x
    x = 85,754,771,011.25/345,430.28
  6. Step 6: Final answer
    x = 248,254.94

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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.