Home / 310,827.09-428,942.04-183,510.89

Finding the Fourth Proportional to 310,827.09, 428,942.04 and 183,510.89

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Solution

The fourth proportional to 310,827.09, 428,942.04 and 183,510.89 is: 253,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,827.09 : 428,942.04 = 183,510.89 : x
  2. Step 2: Convert to fraction form
    310,827.09/428,942.04 = 183,510.89/x
  3. Step 3: Cross multiply
    310,827.09x = 428,942.04 × 183,510.89
  4. Step 4: Simplify right side
    310,827.09x = 78,715,535,518.82
  5. Step 5: Solve for x
    x = 78,715,535,518.82/310,827.09
  6. Step 6: Final answer
    x = 253,245.42

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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.