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Finding the Fourth Proportional to 152,387.51, 210,292.45 and 83,476.43

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Solution

The fourth proportional to 152,387.51, 210,292.45 and 83,476.43 is: 115,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,387.51 : 210,292.45 = 83,476.43 : x
  2. Step 2: Convert to fraction form
    152,387.51/210,292.45 = 83,476.43/x
  3. Step 3: Cross multiply
    152,387.51x = 210,292.45 × 83,476.43
  4. Step 4: Simplify right side
    152,387.51x = 17,554,461,513.11
  5. Step 5: Solve for x
    x = 17,554,461,513.11/152,387.51
  6. Step 6: Final answer
    x = 115,196.20

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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.