Home / 279,475.95-385,683.75-152,158.53

Finding the Fourth Proportional to 279,475.95, 385,683.75 and 152,158.53

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Solution

The fourth proportional to 279,475.95, 385,683.75 and 152,158.53 is: 209,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,475.95 : 385,683.75 = 152,158.53 : x
  2. Step 2: Convert to fraction form
    279,475.95/385,683.75 = 152,158.53/x
  3. Step 3: Cross multiply
    279,475.95x = 385,683.75 × 152,158.53
  4. Step 4: Simplify right side
    279,475.95x = 58,685,071,684.09
  5. Step 5: Solve for x
    x = 58,685,071,684.09/279,475.95
  6. Step 6: Final answer
    x = 209,982.55

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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.