Home / 421,669.04-581,929.08-242,878.64

Finding the Fourth Proportional to 421,669.04, 581,929.08 and 242,878.64

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Solution

The fourth proportional to 421,669.04, 581,929.08 and 242,878.64 is: 335,187.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,669.04 : 581,929.08 = 242,878.64 : x
  2. Step 2: Convert to fraction form
    421,669.04/581,929.08 = 242,878.64/x
  3. Step 3: Cross multiply
    421,669.04x = 581,929.08 × 242,878.64
  4. Step 4: Simplify right side
    421,669.04x = 141,338,143,526.85
  5. Step 5: Solve for x
    x = 141,338,143,526.85/421,669.04
  6. Step 6: Final answer
    x = 335,187.39

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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.