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Finding the Fourth Proportional to 259,980.32, 358,780.20 and 146,820.08

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Solution

The fourth proportional to 259,980.32, 358,780.20 and 146,820.08 is: 202,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,980.32 : 358,780.20 = 146,820.08 : x
  2. Step 2: Convert to fraction form
    259,980.32/358,780.20 = 146,820.08/x
  3. Step 3: Cross multiply
    259,980.32x = 358,780.20 × 146,820.08
  4. Step 4: Simplify right side
    259,980.32x = 52,676,137,666.42
  5. Step 5: Solve for x
    x = 52,676,137,666.42/259,980.32
  6. Step 6: Final answer
    x = 202,615.87

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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.