Home / 282,768.40-390,210.52-155,443.08

Finding the Fourth Proportional to 282,768.40, 390,210.52 and 155,443.08

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Solution

The fourth proportional to 282,768.40, 390,210.52 and 155,443.08 is: 214,506.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,768.40 : 390,210.52 = 155,443.08 : x
  2. Step 2: Convert to fraction form
    282,768.40/390,210.52 = 155,443.08/x
  3. Step 3: Cross multiply
    282,768.40x = 390,210.52 × 155,443.08
  4. Step 4: Simplify right side
    282,768.40x = 60,655,525,077.20
  5. Step 5: Solve for x
    x = 60,655,525,077.20/282,768.40
  6. Step 6: Final answer
    x = 214,506.02

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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.