Home / 405,006.03-558,904.83-223,730.61

Finding the Fourth Proportional to 405,006.03, 558,904.83 and 223,730.61

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Solution

The fourth proportional to 405,006.03, 558,904.83 and 223,730.61 is: 308,746.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,006.03 : 558,904.83 = 223,730.61 : x
  2. Step 2: Convert to fraction form
    405,006.03/558,904.83 = 223,730.61/x
  3. Step 3: Cross multiply
    405,006.03x = 558,904.83 × 223,730.61
  4. Step 4: Simplify right side
    405,006.03x = 125,044,118,547.85
  5. Step 5: Solve for x
    x = 125,044,118,547.85/405,006.03
  6. Step 6: Final answer
    x = 308,746.31

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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.