Home / 249,656.45-344,531.21-136,479.20

Finding the Fourth Proportional to 249,656.45, 344,531.21 and 136,479.20

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Solution

The fourth proportional to 249,656.45, 344,531.21 and 136,479.20 is: 188,344.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,656.45 : 344,531.21 = 136,479.20 : x
  2. Step 2: Convert to fraction form
    249,656.45/344,531.21 = 136,479.20/x
  3. Step 3: Cross multiply
    249,656.45x = 344,531.21 × 136,479.20
  4. Step 4: Simplify right side
    249,656.45x = 47,021,341,510.78
  5. Step 5: Solve for x
    x = 47,021,341,510.78/249,656.45
  6. Step 6: Final answer
    x = 188,344.19

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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.