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Finding the Fourth Proportional to 354,637.60, 532,150.80 and 144,426.40

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Solution

The fourth proportional to 354,637.60, 532,150.80 and 144,426.40 is: 216,718.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,637.60 : 532,150.80 = 144,426.40 : x
  2. Step 2: Convert to fraction form
    354,637.60/532,150.80 = 144,426.40/x
  3. Step 3: Cross multiply
    354,637.60x = 532,150.80 × 144,426.40
  4. Step 4: Simplify right side
    354,637.60x = 76,856,624,301.12
  5. Step 5: Solve for x
    x = 76,856,624,301.12/354,637.60
  6. Step 6: Final answer
    x = 216,718.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.