Home / 282,697.24-390,117.66-155,370.10

Finding the Fourth Proportional to 282,697.24, 390,117.66 and 155,370.10

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Solution

The fourth proportional to 282,697.24, 390,117.66 and 155,370.10 is: 214,408.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,697.24 : 390,117.66 = 155,370.10 : x
  2. Step 2: Convert to fraction form
    282,697.24/390,117.66 = 155,370.10/x
  3. Step 3: Cross multiply
    282,697.24x = 390,117.66 × 155,370.10
  4. Step 4: Simplify right side
    282,697.24x = 60,612,618,288.03
  5. Step 5: Solve for x
    x = 60,612,618,288.03/282,697.24
  6. Step 6: Final answer
    x = 214,408.24

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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.