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Finding the Fourth Proportional to 450,188.74, 621,280.36 and 259,263.64

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Solution

The fourth proportional to 450,188.74, 621,280.36 and 259,263.64 is: 357,795.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,188.74 : 621,280.36 = 259,263.64 : x
  2. Step 2: Convert to fraction form
    450,188.74/621,280.36 = 259,263.64/x
  3. Step 3: Cross multiply
    450,188.74x = 621,280.36 × 259,263.64
  4. Step 4: Simplify right side
    450,188.74x = 161,075,407,594.11
  5. Step 5: Solve for x
    x = 161,075,407,594.11/450,188.74
  6. Step 6: Final answer
    x = 357,795.28

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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.