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Finding the Fourth Proportional to 312,096.80, 468,145.20 and 249,888.80

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Solution

The fourth proportional to 312,096.80, 468,145.20 and 249,888.80 is: 374,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,096.80 : 468,145.20 = 249,888.80 : x
  2. Step 2: Convert to fraction form
    312,096.80/468,145.20 = 249,888.80/x
  3. Step 3: Cross multiply
    312,096.80x = 468,145.20 × 249,888.80
  4. Step 4: Simplify right side
    312,096.80x = 116,984,242,253.76
  5. Step 5: Solve for x
    x = 116,984,242,253.76/312,096.80
  6. Step 6: Final answer
    x = 374,833.20

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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.