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Finding the Fourth Proportional to 405,070.98, 559,030.68 and 223,798.80

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Solution

The fourth proportional to 405,070.98, 559,030.68 and 223,798.80 is: 308,860.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,070.98 : 559,030.68 = 223,798.80 : x
  2. Step 2: Convert to fraction form
    405,070.98/559,030.68 = 223,798.80/x
  3. Step 3: Cross multiply
    405,070.98x = 559,030.68 × 223,798.80
  4. Step 4: Simplify right side
    405,070.98x = 125,110,395,347.18
  5. Step 5: Solve for x
    x = 125,110,395,347.18/405,070.98
  6. Step 6: Final answer
    x = 308,860.43

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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.