Home / 284,302.81-392,339.77-155,242.18

Finding the Fourth Proportional to 284,302.81, 392,339.77 and 155,242.18

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Solution

The fourth proportional to 284,302.81, 392,339.77 and 155,242.18 is: 214,235.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,302.81 : 392,339.77 = 155,242.18 : x
  2. Step 2: Convert to fraction form
    284,302.81/392,339.77 = 155,242.18/x
  3. Step 3: Cross multiply
    284,302.81x = 392,339.77 × 155,242.18
  4. Step 4: Simplify right side
    284,302.81x = 60,907,679,233.80
  5. Step 5: Solve for x
    x = 60,907,679,233.80/284,302.81
  6. Step 6: Final answer
    x = 214,235.24

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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.