Home / 286,741.52-430,054.54-272,515.12

Finding the Fourth Proportional to 286,741.52, 430,054.54 and 272,515.12

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Solution

The fourth proportional to 286,741.52, 430,054.54 and 272,515.12 is: 408,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,741.52 : 430,054.54 = 272,515.12 : x
  2. Step 2: Convert to fraction form
    286,741.52/430,054.54 = 272,515.12/x
  3. Step 3: Cross multiply
    286,741.52x = 430,054.54 × 272,515.12
  4. Step 4: Simplify right side
    286,741.52x = 117,196,364,574.65
  5. Step 5: Solve for x
    x = 117,196,364,574.65/286,741.52
  6. Step 6: Final answer
    x = 408,717.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.