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Finding the Fourth Proportional to 288,027.70, 432,041.55 and 169,638.10

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Solution

The fourth proportional to 288,027.70, 432,041.55 and 169,638.10 is: 254,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,027.70 : 432,041.55 = 169,638.10 : x
  2. Step 2: Convert to fraction form
    288,027.70/432,041.55 = 169,638.10/x
  3. Step 3: Cross multiply
    288,027.70x = 432,041.55 × 169,638.10
  4. Step 4: Simplify right side
    288,027.70x = 73,290,707,663.06
  5. Step 5: Solve for x
    x = 73,290,707,663.06/288,027.70
  6. Step 6: Final answer
    x = 254,457.15

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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.