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Finding the Fourth Proportional to 266,411.84, 367,648.65 and 145,555.16

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Solution

The fourth proportional to 266,411.84, 367,648.65 and 145,555.16 is: 200,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,411.84 : 367,648.65 = 145,555.16 : x
  2. Step 2: Convert to fraction form
    266,411.84/367,648.65 = 145,555.16/x
  3. Step 3: Cross multiply
    266,411.84x = 367,648.65 × 145,555.16
  4. Step 4: Simplify right side
    266,411.84x = 53,513,158,074.53
  5. Step 5: Solve for x
    x = 53,513,158,074.53/266,411.84
  6. Step 6: Final answer
    x = 200,866.29

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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.