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Finding the Fourth Proportional to 346,533.74, 478,220.55 and 203,296.22

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Solution

The fourth proportional to 346,533.74, 478,220.55 and 203,296.22 is: 280,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,533.74 : 478,220.55 = 203,296.22 : x
  2. Step 2: Convert to fraction form
    346,533.74/478,220.55 = 203,296.22/x
  3. Step 3: Cross multiply
    346,533.74x = 478,220.55 × 203,296.22
  4. Step 4: Simplify right side
    346,533.74x = 97,220,430,141.32
  5. Step 5: Solve for x
    x = 97,220,430,141.32/346,533.74
  6. Step 6: Final answer
    x = 280,551.12

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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.