Home / 282,770.42-390,230.64-153,717.57

Finding the Fourth Proportional to 282,770.42, 390,230.64 and 153,717.57

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Solution

The fourth proportional to 282,770.42, 390,230.64 and 153,717.57 is: 212,134.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,770.42 : 390,230.64 = 153,717.57 : x
  2. Step 2: Convert to fraction form
    282,770.42/390,230.64 = 153,717.57/x
  3. Step 3: Cross multiply
    282,770.42x = 390,230.64 × 153,717.57
  4. Step 4: Simplify right side
    282,770.42x = 59,985,305,720.34
  5. Step 5: Solve for x
    x = 59,985,305,720.34/282,770.42
  6. Step 6: Final answer
    x = 212,134.31

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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.