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Finding the Fourth Proportional to 295,482.51, 440,412.93 and 278,665.83

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Solution

The fourth proportional to 295,482.51, 440,412.93 and 278,665.83 is: 415,347.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,482.51 : 440,412.93 = 278,665.83 : x
  2. Step 2: Convert to fraction form
    295,482.51/440,412.93 = 278,665.83/x
  3. Step 3: Cross multiply
    295,482.51x = 440,412.93 × 278,665.83
  4. Step 4: Simplify right side
    295,482.51x = 122,728,034,681.18
  5. Step 5: Solve for x
    x = 122,728,034,681.18/295,482.51
  6. Step 6: Final answer
    x = 415,347.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.