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Finding the Fourth Proportional to 402,276.61, 603,664.10 and 233,876.20

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Solution

The fourth proportional to 402,276.61, 603,664.10 and 233,876.20 is: 350,959.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,276.61 : 603,664.10 = 233,876.20 : x
  2. Step 2: Convert to fraction form
    402,276.61/603,664.10 = 233,876.20/x
  3. Step 3: Cross multiply
    402,276.61x = 603,664.10 × 233,876.20
  4. Step 4: Simplify right side
    402,276.61x = 141,182,665,784.42
  5. Step 5: Solve for x
    x = 141,182,665,784.42/402,276.61
  6. Step 6: Final answer
    x = 350,959.17

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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.