Home / 311,938.32-429,967.08-243,835.08

Finding the Fourth Proportional to 311,938.32, 429,967.08 and 243,835.08

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Solution

The fourth proportional to 311,938.32, 429,967.08 and 243,835.08 is: 336,095.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,938.32 : 429,967.08 = 243,835.08 : x
  2. Step 2: Convert to fraction form
    311,938.32/429,967.08 = 243,835.08/x
  3. Step 3: Cross multiply
    311,938.32x = 429,967.08 × 243,835.08
  4. Step 4: Simplify right side
    311,938.32x = 104,841,057,349.17
  5. Step 5: Solve for x
    x = 104,841,057,349.17/311,938.32
  6. Step 6: Final answer
    x = 336,095.47

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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.