Home / 316,111.07-436,273.13-207,306.91

Finding the Fourth Proportional to 316,111.07, 436,273.13 and 207,306.91

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Solution

The fourth proportional to 316,111.07, 436,273.13 and 207,306.91 is: 286,109.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,111.07 : 436,273.13 = 207,306.91 : x
  2. Step 2: Convert to fraction form
    316,111.07/436,273.13 = 207,306.91/x
  3. Step 3: Cross multiply
    316,111.07x = 436,273.13 × 207,306.91
  4. Step 4: Simplify right side
    316,111.07x = 90,442,432,261.78
  5. Step 5: Solve for x
    x = 90,442,432,261.78/316,111.07
  6. Step 6: Final answer
    x = 286,109.67

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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.