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Finding the Fourth Proportional to 288,095.60, 432,143.40 and 193,617.20

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Solution

The fourth proportional to 288,095.60, 432,143.40 and 193,617.20 is: 290,425.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,095.60 : 432,143.40 = 193,617.20 : x
  2. Step 2: Convert to fraction form
    288,095.60/432,143.40 = 193,617.20/x
  3. Step 3: Cross multiply
    288,095.60x = 432,143.40 × 193,617.20
  4. Step 4: Simplify right side
    288,095.60x = 83,670,395,106.48
  5. Step 5: Solve for x
    x = 83,670,395,106.48/288,095.60
  6. Step 6: Final answer
    x = 290,425.80

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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.