Home / 272,837.10-409,328.55-243,458.40

Finding the Fourth Proportional to 272,837.10, 409,328.55 and 243,458.40

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Solution

The fourth proportional to 272,837.10, 409,328.55 and 243,458.40 is: 365,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,837.10 : 409,328.55 = 243,458.40 : x
  2. Step 2: Convert to fraction form
    272,837.10/409,328.55 = 243,458.40/x
  3. Step 3: Cross multiply
    272,837.10x = 409,328.55 × 243,458.40
  4. Step 4: Simplify right side
    272,837.10x = 99,654,473,857.32
  5. Step 5: Solve for x
    x = 99,654,473,857.32/272,837.10
  6. Step 6: Final answer
    x = 365,252.65

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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.