Home / 316,538.98-436,825.07-173,312.35

Finding the Fourth Proportional to 316,538.98, 436,825.07 and 173,312.35

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Solution

The fourth proportional to 316,538.98, 436,825.07 and 173,312.35 is: 239,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,538.98 : 436,825.07 = 173,312.35 : x
  2. Step 2: Convert to fraction form
    316,538.98/436,825.07 = 173,312.35/x
  3. Step 3: Cross multiply
    316,538.98x = 436,825.07 × 173,312.35
  4. Step 4: Simplify right side
    316,538.98x = 75,707,178,111.91
  5. Step 5: Solve for x
    x = 75,707,178,111.91/316,538.98
  6. Step 6: Final answer
    x = 239,171.74

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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.