Home / 387,017.60-534,089.52-214,946.68

Finding the Fourth Proportional to 387,017.60, 534,089.52 and 214,946.68

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Solution

The fourth proportional to 387,017.60, 534,089.52 and 214,946.68 is: 296,629.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,017.60 : 534,089.52 = 214,946.68 : x
  2. Step 2: Convert to fraction form
    387,017.60/534,089.52 = 214,946.68/x
  3. Step 3: Cross multiply
    387,017.60x = 534,089.52 × 214,946.68
  4. Step 4: Simplify right side
    387,017.60x = 114,800,769,146.79
  5. Step 5: Solve for x
    x = 114,800,769,146.79/387,017.60
  6. Step 6: Final answer
    x = 296,629.32

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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.