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Finding the Fourth Proportional to 288,595.04, 432,892.55 and 78,227.51

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Solution

The fourth proportional to 288,595.04, 432,892.55 and 78,227.51 is: 117,341.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,595.04 : 432,892.55 = 78,227.51 : x
  2. Step 2: Convert to fraction form
    288,595.04/432,892.55 = 78,227.51/x
  3. Step 3: Cross multiply
    288,595.04x = 432,892.55 × 78,227.51
  4. Step 4: Simplify right side
    288,595.04x = 33,864,104,315.16
  5. Step 5: Solve for x
    x = 33,864,104,315.16/288,595.04
  6. Step 6: Final answer
    x = 117,341.26

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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.