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Finding the Fourth Proportional to 152,397.01, 210,305.50 and 83,485.93

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Solution

The fourth proportional to 152,397.01, 210,305.50 and 83,485.93 is: 115,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,397.01 : 210,305.50 = 83,485.93 : x
  2. Step 2: Convert to fraction form
    152,397.01/210,305.50 = 83,485.93/x
  3. Step 3: Cross multiply
    152,397.01x = 210,305.50 × 83,485.93
  4. Step 4: Simplify right side
    152,397.01x = 17,557,550,251.62
  5. Step 5: Solve for x
    x = 17,557,550,251.62/152,397.01
  6. Step 6: Final answer
    x = 115,209.28

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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.