Home / 282,890.04-390,391.02-155,566.50

Finding the Fourth Proportional to 282,890.04, 390,391.02 and 155,566.50

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Solution

The fourth proportional to 282,890.04, 390,391.02 and 155,566.50 is: 214,683.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,890.04 : 390,391.02 = 155,566.50 : x
  2. Step 2: Convert to fraction form
    282,890.04/390,391.02 = 155,566.50/x
  3. Step 3: Cross multiply
    282,890.04x = 390,391.02 × 155,566.50
  4. Step 4: Simplify right side
    282,890.04x = 60,731,764,612.83
  5. Step 5: Solve for x
    x = 60,731,764,612.83/282,890.04
  6. Step 6: Final answer
    x = 214,683.29

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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.