Home / 210,282.08-315,421.50-52,509.48

Finding the Fourth Proportional to 210,282.08, 315,421.50 and 52,509.48

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Solution

The fourth proportional to 210,282.08, 315,421.50 and 52,509.48 is: 78,763.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,282.08 : 315,421.50 = 52,509.48 : x
  2. Step 2: Convert to fraction form
    210,282.08/315,421.50 = 52,509.48/x
  3. Step 3: Cross multiply
    210,282.08x = 315,421.50 × 52,509.48
  4. Step 4: Simplify right side
    210,282.08x = 16,562,618,945.82
  5. Step 5: Solve for x
    x = 16,562,618,945.82/210,282.08
  6. Step 6: Final answer
    x = 78,763.82

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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.