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Finding the Fourth Proportional to 442,528.20, 610,510.50 and 256,137.06

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Solution

The fourth proportional to 442,528.20, 610,510.50 and 256,137.06 is: 353,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,528.20 : 610,510.50 = 256,137.06 : x
  2. Step 2: Convert to fraction form
    442,528.20/610,510.50 = 256,137.06/x
  3. Step 3: Cross multiply
    442,528.20x = 610,510.50 × 256,137.06
  4. Step 4: Simplify right side
    442,528.20x = 156,374,364,569.13
  5. Step 5: Solve for x
    x = 156,374,364,569.13/442,528.20
  6. Step 6: Final answer
    x = 353,365.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.