Home / 445,915.61-668,849.55-157,707.28

Finding the Fourth Proportional to 445,915.61, 668,849.55 and 157,707.28

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Solution

The fourth proportional to 445,915.61, 668,849.55 and 157,707.28 is: 236,552.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,915.61 : 668,849.55 = 157,707.28 : x
  2. Step 2: Convert to fraction form
    445,915.61/668,849.55 = 157,707.28/x
  3. Step 3: Cross multiply
    445,915.61x = 668,849.55 × 157,707.28
  4. Step 4: Simplify right side
    445,915.61x = 105,482,443,259.72
  5. Step 5: Solve for x
    x = 105,482,443,259.72/445,915.61
  6. Step 6: Final answer
    x = 236,552.48

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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.