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Finding the Fourth Proportional to 192,798.32, 266,061.64 and 107,915.40

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Solution

The fourth proportional to 192,798.32, 266,061.64 and 107,915.40 is: 148,923.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,798.32 : 266,061.64 = 107,915.40 : x
  2. Step 2: Convert to fraction form
    192,798.32/266,061.64 = 107,915.40/x
  3. Step 3: Cross multiply
    192,798.32x = 266,061.64 × 107,915.40
  4. Step 4: Simplify right side
    192,798.32x = 28,712,148,305.26
  5. Step 5: Solve for x
    x = 28,712,148,305.26/192,798.32
  6. Step 6: Final answer
    x = 148,923.23

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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.