Home / 401,316.63-553,834.41-240,140.79

Finding the Fourth Proportional to 401,316.63, 553,834.41 and 240,140.79

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Solution

The fourth proportional to 401,316.63, 553,834.41 and 240,140.79 is: 331,404.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,316.63 : 553,834.41 = 240,140.79 : x
  2. Step 2: Convert to fraction form
    401,316.63/553,834.41 = 240,140.79/x
  3. Step 3: Cross multiply
    401,316.63x = 553,834.41 × 240,140.79
  4. Step 4: Simplify right side
    401,316.63x = 132,998,232,746.58
  5. Step 5: Solve for x
    x = 132,998,232,746.58/401,316.63
  6. Step 6: Final answer
    x = 331,404.74

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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.