Home / 249,012.56-343,631.76-135,839.36

Finding the Fourth Proportional to 249,012.56, 343,631.76 and 135,839.36

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Solution

The fourth proportional to 249,012.56, 343,631.76 and 135,839.36 is: 187,455.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,012.56 : 343,631.76 = 135,839.36 : x
  2. Step 2: Convert to fraction form
    249,012.56/343,631.76 = 135,839.36/x
  3. Step 3: Cross multiply
    249,012.56x = 343,631.76 × 135,839.36
  4. Step 4: Simplify right side
    249,012.56x = 46,678,718,354.07
  5. Step 5: Solve for x
    x = 46,678,718,354.07/249,012.56
  6. Step 6: Final answer
    x = 187,455.28

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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.