Home / 312,153.47-430,772.93-168,913.52

Finding the Fourth Proportional to 312,153.47, 430,772.93 and 168,913.52

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Solution

The fourth proportional to 312,153.47, 430,772.93 and 168,913.52 is: 233,101.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,153.47 : 430,772.93 = 168,913.52 : x
  2. Step 2: Convert to fraction form
    312,153.47/430,772.93 = 168,913.52/x
  3. Step 3: Cross multiply
    312,153.47x = 430,772.93 × 168,913.52
  4. Step 4: Simplify right side
    312,153.47x = 72,763,368,928.58
  5. Step 5: Solve for x
    x = 72,763,368,928.58/312,153.47
  6. Step 6: Final answer
    x = 233,101.27

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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.