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Finding the Fourth Proportional to 303,666.20, 455,499.30 and 163,698.20

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Solution

The fourth proportional to 303,666.20, 455,499.30 and 163,698.20 is: 245,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,666.20 : 455,499.30 = 163,698.20 : x
  2. Step 2: Convert to fraction form
    303,666.20/455,499.30 = 163,698.20/x
  3. Step 3: Cross multiply
    303,666.20x = 455,499.30 × 163,698.20
  4. Step 4: Simplify right side
    303,666.20x = 74,564,415,511.26
  5. Step 5: Solve for x
    x = 74,564,415,511.26/303,666.20
  6. Step 6: Final answer
    x = 245,547.30

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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.