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Finding the Fourth Proportional to 151,352.68, 208,864.78 and 83,368.28

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Solution

The fourth proportional to 151,352.68, 208,864.78 and 83,368.28 is: 115,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,352.68 : 208,864.78 = 83,368.28 : x
  2. Step 2: Convert to fraction form
    151,352.68/208,864.78 = 83,368.28/x
  3. Step 3: Cross multiply
    151,352.68x = 208,864.78 × 83,368.28
  4. Step 4: Simplify right side
    151,352.68x = 17,412,697,461.18
  5. Step 5: Solve for x
    x = 17,412,697,461.18/151,352.68
  6. Step 6: Final answer
    x = 115,047.17

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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.