Home / 279,126.81-385,197.53-151,802.10

Finding the Fourth Proportional to 279,126.81, 385,197.53 and 151,802.10

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Solution

The fourth proportional to 279,126.81, 385,197.53 and 151,802.10 is: 209,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,126.81 : 385,197.53 = 151,802.10 : x
  2. Step 2: Convert to fraction form
    279,126.81/385,197.53 = 151,802.10/x
  3. Step 3: Cross multiply
    279,126.81x = 385,197.53 × 151,802.10
  4. Step 4: Simplify right side
    279,126.81x = 58,473,793,209.80
  5. Step 5: Solve for x
    x = 58,473,793,209.80/279,126.81
  6. Step 6: Final answer
    x = 209,488.27

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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.