Home / 282,888.04-390,388.26-155,564.50

Finding the Fourth Proportional to 282,888.04, 390,388.26 and 155,564.50

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Solution

The fourth proportional to 282,888.04, 390,388.26 and 155,564.50 is: 214,680.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,888.04 : 390,388.26 = 155,564.50 : x
  2. Step 2: Convert to fraction form
    282,888.04/390,388.26 = 155,564.50/x
  3. Step 3: Cross multiply
    282,888.04x = 390,388.26 × 155,564.50
  4. Step 4: Simplify right side
    282,888.04x = 60,730,554,472.77
  5. Step 5: Solve for x
    x = 60,730,554,472.77/282,888.04
  6. Step 6: Final answer
    x = 214,680.53

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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.