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Finding the Fourth Proportional to 178,012.80, 245,655.18 and 97,438.32

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Solution

The fourth proportional to 178,012.80, 245,655.18 and 97,438.32 is: 134,463.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,012.80 : 245,655.18 = 97,438.32 : x
  2. Step 2: Convert to fraction form
    178,012.80/245,655.18 = 97,438.32/x
  3. Step 3: Cross multiply
    178,012.80x = 245,655.18 × 97,438.32
  4. Step 4: Simplify right side
    178,012.80x = 23,936,228,038.50
  5. Step 5: Solve for x
    x = 23,936,228,038.50/178,012.80
  6. Step 6: Final answer
    x = 134,463.52

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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.