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Finding the Fourth Proportional to 580,155.68, 870,127.68 and 243,106.16

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Solution

The fourth proportional to 580,155.68, 870,127.68 and 243,106.16 is: 364,614.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,155.68 : 870,127.68 = 243,106.16 : x
  2. Step 2: Convert to fraction form
    580,155.68/870,127.68 = 243,106.16/x
  3. Step 3: Cross multiply
    580,155.68x = 870,127.68 × 243,106.16
  4. Step 4: Simplify right side
    580,155.68x = 211,533,398,994.51
  5. Step 5: Solve for x
    x = 211,533,398,994.51/580,155.68
  6. Step 6: Final answer
    x = 364,614.89

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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.