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Finding the Fourth Proportional to 302,502.60, 453,753.90 and 145,038.60

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Solution

The fourth proportional to 302,502.60, 453,753.90 and 145,038.60 is: 217,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,502.60 : 453,753.90 = 145,038.60 : x
  2. Step 2: Convert to fraction form
    302,502.60/453,753.90 = 145,038.60/x
  3. Step 3: Cross multiply
    302,502.60x = 453,753.90 × 145,038.60
  4. Step 4: Simplify right side
    302,502.60x = 65,811,830,400.54
  5. Step 5: Solve for x
    x = 65,811,830,400.54/302,502.60
  6. Step 6: Final answer
    x = 217,557.90

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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.