Home / 282,969.18-390,497.67-155,654.46

Finding the Fourth Proportional to 282,969.18, 390,497.67 and 155,654.46

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Solution

The fourth proportional to 282,969.18, 390,497.67 and 155,654.46 is: 214,803.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,969.18 : 390,497.67 = 155,654.46 : x
  2. Step 2: Convert to fraction form
    282,969.18/390,497.67 = 155,654.46/x
  3. Step 3: Cross multiply
    282,969.18x = 390,497.67 × 155,654.46
  4. Step 4: Simplify right side
    282,969.18x = 60,782,703,955.11
  5. Step 5: Solve for x
    x = 60,782,703,955.11/282,969.18
  6. Step 6: Final answer
    x = 214,803.27

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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.