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Finding the Fourth Proportional to 239,265.60, 358,869.60 and 99,009.60

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Solution

The fourth proportional to 239,265.60, 358,869.60 and 99,009.60 is: 148,502.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,265.60 : 358,869.60 = 99,009.60 : x
  2. Step 2: Convert to fraction form
    239,265.60/358,869.60 = 99,009.60/x
  3. Step 3: Cross multiply
    239,265.60x = 358,869.60 × 99,009.60
  4. Step 4: Simplify right side
    239,265.60x = 35,531,535,548.16
  5. Step 5: Solve for x
    x = 35,531,535,548.16/239,265.60
  6. Step 6: Final answer
    x = 148,502.48

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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.