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Finding the Fourth Proportional to 282,768.40, 424,148.87 and 69,538.16

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Solution

The fourth proportional to 282,768.40, 424,148.87 and 69,538.16 is: 104,306.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,768.40 : 424,148.87 = 69,538.16 : x
  2. Step 2: Convert to fraction form
    282,768.40/424,148.87 = 69,538.16/x
  3. Step 3: Cross multiply
    282,768.40x = 424,148.87 × 69,538.16
  4. Step 4: Simplify right side
    282,768.40x = 29,494,531,638.19
  5. Step 5: Solve for x
    x = 29,494,531,638.19/282,768.40
  6. Step 6: Final answer
    x = 104,306.32

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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.