Home / 312,210.02-430,849.78-168,970.08

Finding the Fourth Proportional to 312,210.02, 430,849.78 and 168,970.08

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Solution

The fourth proportional to 312,210.02, 430,849.78 and 168,970.08 is: 233,178.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,210.02 : 430,849.78 = 168,970.08 : x
  2. Step 2: Convert to fraction form
    312,210.02/430,849.78 = 168,970.08/x
  3. Step 3: Cross multiply
    312,210.02x = 430,849.78 × 168,970.08
  4. Step 4: Simplify right side
    312,210.02x = 72,800,721,794.58
  5. Step 5: Solve for x
    x = 72,800,721,794.58/312,210.02
  6. Step 6: Final answer
    x = 233,178.68

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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.