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Finding the Fourth Proportional to 480,002.40, 720,003.60 and 147,535.20

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Solution

The fourth proportional to 480,002.40, 720,003.60 and 147,535.20 is: 221,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,002.40 : 720,003.60 = 147,535.20 : x
  2. Step 2: Convert to fraction form
    480,002.40/720,003.60 = 147,535.20/x
  3. Step 3: Cross multiply
    480,002.40x = 720,003.60 × 147,535.20
  4. Step 4: Simplify right side
    480,002.40x = 106,225,875,126.72
  5. Step 5: Solve for x
    x = 106,225,875,126.72/480,002.40
  6. Step 6: Final answer
    x = 221,302.80

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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.