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Finding the Fourth Proportional to 282,721.80, 424,082.70 and 236,411.40

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Solution

The fourth proportional to 282,721.80, 424,082.70 and 236,411.40 is: 354,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,721.80 : 424,082.70 = 236,411.40 : x
  2. Step 2: Convert to fraction form
    282,721.80/424,082.70 = 236,411.40/x
  3. Step 3: Cross multiply
    282,721.80x = 424,082.70 × 236,411.40
  4. Step 4: Simplify right side
    282,721.80x = 100,257,984,822.78
  5. Step 5: Solve for x
    x = 100,257,984,822.78/282,721.80
  6. Step 6: Final answer
    x = 354,617.10

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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.