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Finding the Fourth Proportional to 358,487.40, 537,731.10 and 302,500.20

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Solution

The fourth proportional to 358,487.40, 537,731.10 and 302,500.20 is: 453,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,487.40 : 537,731.10 = 302,500.20 : x
  2. Step 2: Convert to fraction form
    358,487.40/537,731.10 = 302,500.20/x
  3. Step 3: Cross multiply
    358,487.40x = 537,731.10 × 302,500.20
  4. Step 4: Simplify right side
    358,487.40x = 162,663,765,296.22
  5. Step 5: Solve for x
    x = 162,663,765,296.22/358,487.40
  6. Step 6: Final answer
    x = 453,750.30

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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.