Home / 258,711.79-357,017.61-144,009.04

Finding the Fourth Proportional to 258,711.79, 357,017.61 and 144,009.04

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Solution

The fourth proportional to 258,711.79, 357,017.61 and 144,009.04 is: 198,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,711.79 : 357,017.61 = 144,009.04 : x
  2. Step 2: Convert to fraction form
    258,711.79/357,017.61 = 144,009.04/x
  3. Step 3: Cross multiply
    258,711.79x = 357,017.61 × 144,009.04
  4. Step 4: Simplify right side
    258,711.79x = 51,413,763,279.19
  5. Step 5: Solve for x
    x = 51,413,763,279.19/258,711.79
  6. Step 6: Final answer
    x = 198,729.88

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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.