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Finding the Fourth Proportional to 480,002.60, 720,003.90 and 147,535.40

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Solution

The fourth proportional to 480,002.60, 720,003.90 and 147,535.40 is: 221,303.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,002.60 : 720,003.90 = 147,535.40 : x
  2. Step 2: Convert to fraction form
    480,002.60/720,003.90 = 147,535.40/x
  3. Step 3: Cross multiply
    480,002.60x = 720,003.90 × 147,535.40
  4. Step 4: Simplify right side
    480,002.60x = 106,226,063,388.06
  5. Step 5: Solve for x
    x = 106,226,063,388.06/480,002.60
  6. Step 6: Final answer
    x = 221,303.10

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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.