Home / 343,459.28-514,979.40-153,884.72

Finding the Fourth Proportional to 343,459.28, 514,979.40 and 153,884.72

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Solution

The fourth proportional to 343,459.28, 514,979.40 and 153,884.72 is: 230,733.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,459.28 : 514,979.40 = 153,884.72 : x
  2. Step 2: Convert to fraction form
    343,459.28/514,979.40 = 153,884.72/x
  3. Step 3: Cross multiply
    343,459.28x = 514,979.40 × 153,884.72
  4. Step 4: Simplify right side
    343,459.28x = 79,247,460,774.77
  5. Step 5: Solve for x
    x = 79,247,460,774.77/343,459.28
  6. Step 6: Final answer
    x = 230,733.21

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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.