Home / 263,389.81-363,478.89-142,531.08

Finding the Fourth Proportional to 263,389.81, 363,478.89 and 142,531.08

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Solution

The fourth proportional to 263,389.81, 363,478.89 and 142,531.08 is: 196,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,389.81 : 363,478.89 = 142,531.08 : x
  2. Step 2: Convert to fraction form
    263,389.81/363,478.89 = 142,531.08/x
  3. Step 3: Cross multiply
    263,389.81x = 363,478.89 × 142,531.08
  4. Step 4: Simplify right side
    263,389.81x = 51,807,038,748.90
  5. Step 5: Solve for x
    x = 51,807,038,748.90/263,389.81
  6. Step 6: Final answer
    x = 196,693.41

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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.