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Finding the Fourth Proportional to 161,898.80, 242,848.20 and 147,383.60

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Solution

The fourth proportional to 161,898.80, 242,848.20 and 147,383.60 is: 221,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,898.80 : 242,848.20 = 147,383.60 : x
  2. Step 2: Convert to fraction form
    161,898.80/242,848.20 = 147,383.60/x
  3. Step 3: Cross multiply
    161,898.80x = 242,848.20 × 147,383.60
  4. Step 4: Simplify right side
    161,898.80x = 35,791,841,969.52
  5. Step 5: Solve for x
    x = 35,791,841,969.52/161,898.80
  6. Step 6: Final answer
    x = 221,075.40

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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.