Home / 284,683.61-392,865.01-155,622.36

Finding the Fourth Proportional to 284,683.61, 392,865.01 and 155,622.36

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Solution

The fourth proportional to 284,683.61, 392,865.01 and 155,622.36 is: 214,759.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,683.61 : 392,865.01 = 155,622.36 : x
  2. Step 2: Convert to fraction form
    284,683.61/392,865.01 = 155,622.36/x
  3. Step 3: Cross multiply
    284,683.61x = 392,865.01 × 155,622.36
  4. Step 4: Simplify right side
    284,683.61x = 61,138,581,539.50
  5. Step 5: Solve for x
    x = 61,138,581,539.50/284,683.61
  6. Step 6: Final answer
    x = 214,759.75

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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.