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Finding the Fourth Proportional to 249,914.70, 374,418.45 and 144,420.30

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Solution

The fourth proportional to 249,914.70, 374,418.45 and 144,420.30 is: 216,368.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,914.70 : 374,418.45 = 144,420.30 : x
  2. Step 2: Convert to fraction form
    249,914.70/374,418.45 = 144,420.30/x
  3. Step 3: Cross multiply
    249,914.70x = 374,418.45 × 144,420.30
  4. Step 4: Simplify right side
    249,914.70x = 54,073,624,874.54
  5. Step 5: Solve for x
    x = 54,073,624,874.54/249,914.70
  6. Step 6: Final answer
    x = 216,368.32

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1.5x scale

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.