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Finding the Fourth Proportional to 274,312.60, 411,468.90 and 239,320.60

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Solution

The fourth proportional to 274,312.60, 411,468.90 and 239,320.60 is: 358,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,312.60 : 411,468.90 = 239,320.60 : x
  2. Step 2: Convert to fraction form
    274,312.60/411,468.90 = 239,320.60/x
  3. Step 3: Cross multiply
    274,312.60x = 411,468.90 × 239,320.60
  4. Step 4: Simplify right side
    274,312.60x = 98,472,984,029.34
  5. Step 5: Solve for x
    x = 98,472,984,029.34/274,312.60
  6. Step 6: Final answer
    x = 358,980.90

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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.