Home / 282,881.04-390,386.28-155,567.76

Finding the Fourth Proportional to 282,881.04, 390,386.28 and 155,567.76

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Solution

The fourth proportional to 282,881.04, 390,386.28 and 155,567.76 is: 214,689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,881.04 : 390,386.28 = 155,567.76 : x
  2. Step 2: Convert to fraction form
    282,881.04/390,386.28 = 155,567.76/x
  3. Step 3: Cross multiply
    282,881.04x = 390,386.28 × 155,567.76
  4. Step 4: Simplify right side
    282,881.04x = 60,731,519,114.33
  5. Step 5: Solve for x
    x = 60,731,519,114.33/282,881.04
  6. Step 6: Final answer
    x = 214,689.25

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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.