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Finding the Fourth Proportional to 153,604.80, 212,035.20 and 148,622.40

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Solution

The fourth proportional to 153,604.80, 212,035.20 and 148,622.40 is: 205,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,604.80 : 212,035.20 = 148,622.40 : x
  2. Step 2: Convert to fraction form
    153,604.80/212,035.20 = 148,622.40/x
  3. Step 3: Cross multiply
    153,604.80x = 212,035.20 × 148,622.40
  4. Step 4: Simplify right side
    153,604.80x = 31,513,180,308.48
  5. Step 5: Solve for x
    x = 31,513,180,308.48/153,604.80
  6. Step 6: Final answer
    x = 205,157.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.