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Finding the Fourth Proportional to 346,720.70, 520,081.05 and 147,007.10

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Solution

The fourth proportional to 346,720.70, 520,081.05 and 147,007.10 is: 220,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,720.70 : 520,081.05 = 147,007.10 : x
  2. Step 2: Convert to fraction form
    346,720.70/520,081.05 = 147,007.10/x
  3. Step 3: Cross multiply
    346,720.70x = 520,081.05 × 147,007.10
  4. Step 4: Simplify right side
    346,720.70x = 76,455,606,925.46
  5. Step 5: Solve for x
    x = 76,455,606,925.46/346,720.70
  6. Step 6: Final answer
    x = 220,510.65

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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.