Home / 224,918.12-310,389.08-128,120.58

Finding the Fourth Proportional to 224,918.12, 310,389.08 and 128,120.58

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Solution

The fourth proportional to 224,918.12, 310,389.08 and 128,120.58 is: 176,807.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,918.12 : 310,389.08 = 128,120.58 : x
  2. Step 2: Convert to fraction form
    224,918.12/310,389.08 = 128,120.58/x
  3. Step 3: Cross multiply
    224,918.12x = 310,389.08 × 128,120.58
  4. Step 4: Simplify right side
    224,918.12x = 39,767,228,314.66
  5. Step 5: Solve for x
    x = 39,767,228,314.66/224,918.12
  6. Step 6: Final answer
    x = 176,807.58

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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.