Home / 282,823.18-390,303.68-153,770.34

Finding the Fourth Proportional to 282,823.18, 390,303.68 and 153,770.34

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Solution

The fourth proportional to 282,823.18, 390,303.68 and 153,770.34 is: 212,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,823.18 : 390,303.68 = 153,770.34 : x
  2. Step 2: Convert to fraction form
    282,823.18/390,303.68 = 153,770.34/x
  3. Step 3: Cross multiply
    282,823.18x = 390,303.68 × 153,770.34
  4. Step 4: Simplify right side
    282,823.18x = 60,017,129,576.85
  5. Step 5: Solve for x
    x = 60,017,129,576.85/282,823.18
  6. Step 6: Final answer
    x = 212,207.25

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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.