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Finding the Fourth Proportional to 153,492.42, 210,285.39 and 147,739.70

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Solution

The fourth proportional to 153,492.42, 210,285.39 and 147,739.70 is: 202,404.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,492.42 : 210,285.39 = 147,739.70 : x
  2. Step 2: Convert to fraction form
    153,492.42/210,285.39 = 147,739.70/x
  3. Step 3: Cross multiply
    153,492.42x = 210,285.39 × 147,739.70
  4. Step 4: Simplify right side
    153,492.42x = 31,067,499,012.21
  5. Step 5: Solve for x
    x = 31,067,499,012.21/153,492.42
  6. Step 6: Final answer
    x = 202,404.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.