Home / 283,032.40-390,570.60-155,704.72

Finding the Fourth Proportional to 283,032.40, 390,570.60 and 155,704.72

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Solution

The fourth proportional to 283,032.40, 390,570.60 and 155,704.72 is: 214,864.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,032.40 : 390,570.60 = 155,704.72 : x
  2. Step 2: Convert to fraction form
    283,032.40/390,570.60 = 155,704.72/x
  3. Step 3: Cross multiply
    283,032.40x = 390,570.60 × 155,704.72
  4. Step 4: Simplify right side
    283,032.40x = 60,813,685,913.23
  5. Step 5: Solve for x
    x = 60,813,685,913.23/283,032.40
  6. Step 6: Final answer
    x = 214,864.75

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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.