Home / 309,869.04-464,518.34-120,455.40

Finding the Fourth Proportional to 309,869.04, 464,518.34 and 120,455.40

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Solution

The fourth proportional to 309,869.04, 464,518.34 and 120,455.40 is: 180,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,869.04 : 464,518.34 = 120,455.40 : x
  2. Step 2: Convert to fraction form
    309,869.04/464,518.34 = 120,455.40/x
  3. Step 3: Cross multiply
    309,869.04x = 464,518.34 × 120,455.40
  4. Step 4: Simplify right side
    309,869.04x = 55,953,741,849.76
  5. Step 5: Solve for x
    x = 55,953,741,849.76/309,869.04
  6. Step 6: Final answer
    x = 180,572.22

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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.