Home / 282,811.28-390,281.04-155,495.08

Finding the Fourth Proportional to 282,811.28, 390,281.04 and 155,495.08

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Solution

The fourth proportional to 282,811.28, 390,281.04 and 155,495.08 is: 214,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,811.28 : 390,281.04 = 155,495.08 : x
  2. Step 2: Convert to fraction form
    282,811.28/390,281.04 = 155,495.08/x
  3. Step 3: Cross multiply
    282,811.28x = 390,281.04 × 155,495.08
  4. Step 4: Simplify right side
    282,811.28x = 60,686,778,808.40
  5. Step 5: Solve for x
    x = 60,686,778,808.40/282,811.28
  6. Step 6: Final answer
    x = 214,584.01

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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.