Home / 249,628.40-374,442.60-72,141.20

Finding the Fourth Proportional to 249,628.40, 374,442.60 and 72,141.20

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Solution

The fourth proportional to 249,628.40, 374,442.60 and 72,141.20 is: 108,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,628.40 : 374,442.60 = 72,141.20 : x
  2. Step 2: Convert to fraction form
    249,628.40/374,442.60 = 72,141.20/x
  3. Step 3: Cross multiply
    249,628.40x = 374,442.60 × 72,141.20
  4. Step 4: Simplify right side
    249,628.40x = 27,012,738,495.12
  5. Step 5: Solve for x
    x = 27,012,738,495.12/249,628.40
  6. Step 6: Final answer
    x = 108,211.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.