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Finding the Fourth Proportional to 369,681.71, 510,213.33 and 208,551.65

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Solution

The fourth proportional to 369,681.71, 510,213.33 and 208,551.65 is: 287,830.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,681.71 : 510,213.33 = 208,551.65 : x
  2. Step 2: Convert to fraction form
    369,681.71/510,213.33 = 208,551.65/x
  3. Step 3: Cross multiply
    369,681.71x = 510,213.33 × 208,551.65
  4. Step 4: Simplify right side
    369,681.71x = 106,405,829,272.43
  5. Step 5: Solve for x
    x = 106,405,829,272.43/369,681.71
  6. Step 6: Final answer
    x = 287,830.93

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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.