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Finding the Fourth Proportional to 152,258, 210,116.51 and 84,279.70

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Solution

The fourth proportional to 152,258, 210,116.51 and 84,279.70 is: 116,306.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,258 : 210,116.51 = 84,279.70 : x
  2. Step 2: Convert to fraction form
    152,258/210,116.51 = 84,279.70/x
  3. Step 3: Cross multiply
    152,258x = 210,116.51 × 84,279.70
  4. Step 4: Simplify right side
    152,258x = 17,708,554,955.87
  5. Step 5: Solve for x
    x = 17,708,554,955.87/152,258
  6. Step 6: Final answer
    x = 116,306.24

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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.