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Finding the Fourth Proportional to 268,308.76, 370,248.19 and 147,447.45

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Solution

The fourth proportional to 268,308.76, 370,248.19 and 147,447.45 is: 203,467.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,308.76 : 370,248.19 = 147,447.45 : x
  2. Step 2: Convert to fraction form
    268,308.76/370,248.19 = 147,447.45/x
  3. Step 3: Cross multiply
    268,308.76x = 370,248.19 × 147,447.45
  4. Step 4: Simplify right side
    268,308.76x = 54,592,151,482.62
  5. Step 5: Solve for x
    x = 54,592,151,482.62/268,308.76
  6. Step 6: Final answer
    x = 203,467.64

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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.