Home / 249,531.78-344,256.21-153,872.40

Finding the Fourth Proportional to 249,531.78, 344,256.21 and 153,872.40

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Solution

The fourth proportional to 249,531.78, 344,256.21 and 153,872.40 is: 212,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,531.78 : 344,256.21 = 153,872.40 : x
  2. Step 2: Convert to fraction form
    249,531.78/344,256.21 = 153,872.40/x
  3. Step 3: Cross multiply
    249,531.78x = 344,256.21 × 153,872.40
  4. Step 4: Simplify right side
    249,531.78x = 52,971,529,247.60
  5. Step 5: Solve for x
    x = 52,971,529,247.60/249,531.78
  6. Step 6: Final answer
    x = 212,283.70

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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.