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Finding the Fourth Proportional to 354,075.60, 488,626.53 and 210,841.68

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Solution

The fourth proportional to 354,075.60, 488,626.53 and 210,841.68 is: 290,962.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,075.60 : 488,626.53 = 210,841.68 : x
  2. Step 2: Convert to fraction form
    354,075.60/488,626.53 = 210,841.68/x
  3. Step 3: Cross multiply
    354,075.60x = 488,626.53 × 210,841.68
  4. Step 4: Simplify right side
    354,075.60x = 103,022,838,477.77
  5. Step 5: Solve for x
    x = 103,022,838,477.77/354,075.60
  6. Step 6: Final answer
    x = 290,962.83

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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.