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Finding the Fourth Proportional to 380,663.50, 525,332.85 and 210,897.63

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Solution

The fourth proportional to 380,663.50, 525,332.85 and 210,897.63 is: 291,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,663.50 : 525,332.85 = 210,897.63 : x
  2. Step 2: Convert to fraction form
    380,663.50/525,332.85 = 210,897.63/x
  3. Step 3: Cross multiply
    380,663.50x = 525,332.85 × 210,897.63
  4. Step 4: Simplify right side
    380,663.50x = 110,791,453,026.15
  5. Step 5: Solve for x
    x = 110,791,453,026.15/380,663.50
  6. Step 6: Final answer
    x = 291,048.27

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1.5x scale

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.