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Finding the Fourth Proportional to 147,655.20, 221,482.80 and 146,780.40

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Solution

The fourth proportional to 147,655.20, 221,482.80 and 146,780.40 is: 220,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,655.20 : 221,482.80 = 146,780.40 : x
  2. Step 2: Convert to fraction form
    147,655.20/221,482.80 = 146,780.40/x
  3. Step 3: Cross multiply
    147,655.20x = 221,482.80 × 146,780.40
  4. Step 4: Simplify right side
    147,655.20x = 32,509,333,977.12
  5. Step 5: Solve for x
    x = 32,509,333,977.12/147,655.20
  6. Step 6: Final answer
    x = 220,170.60

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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.