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Finding the Fourth Proportional to 148,953.40, 223,430.10 and 131,457.40

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Solution

The fourth proportional to 148,953.40, 223,430.10 and 131,457.40 is: 197,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,953.40 : 223,430.10 = 131,457.40 : x
  2. Step 2: Convert to fraction form
    148,953.40/223,430.10 = 131,457.40/x
  3. Step 3: Cross multiply
    148,953.40x = 223,430.10 × 131,457.40
  4. Step 4: Simplify right side
    148,953.40x = 29,371,540,027.74
  5. Step 5: Solve for x
    x = 29,371,540,027.74/148,953.40
  6. Step 6: Final answer
    x = 197,186.10

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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.